Home / 20,212,973.22-27,896,747.88-12,868,460.22

Finding the Fourth Proportional to 20,212,973.22, 27,896,747.88 and 12,868,460.22

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Solution

The fourth proportional to 20,212,973.22, 27,896,747.88 and 12,868,460.22 is: 17,760,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212,973.22 : 27,896,747.88 = 12,868,460.22 : x
  2. Step 2: Convert to fraction form
    20,212,973.22/27,896,747.88 = 12,868,460.22/x
  3. Step 3: Cross multiply
    20,212,973.22x = 27,896,747.88 × 12,868,460.22
  4. Step 4: Simplify right side
    20,212,973.22x = 358,988,190,361,149.31
  5. Step 5: Solve for x
    x = 358,988,190,361,149.31/20,212,973.22
  6. Step 6: Final answer
    x = 17,760,286.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.